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Glass leech tube dating from around the year 1850, England. This would have been used for applying leeches (a type of worm) to skin. Leeches were used in medicine during this period as a method of bloodletting. Leeches can suck several times their original body weight in blood when applied to the skin. Bloodletting was believed to 'treat' patients with a wide range of ailments by removing surplus bodily 'humours' (liquids within the body) which were thought to cause disease.
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